diff --git a/backend/bdd/features/pki/acme/challenge.feature b/backend/bdd/features/pki/acme/challenge.feature
index e6b0b7885..8e7dad523 100644
--- a/backend/bdd/features/pki/acme/challenge.feature
+++ b/backend/bdd/features/pki/acme/challenge.feature
@@ -19,4 +19,3 @@ Feature: Challenge
     Then I select challenge with type http-01 for domain localhost from order at order as challenge
     Then I serve challenge response for challenge at localhost
     Then I tell ACME server that challenge is ready to be verified
-
diff --git a/backend/bdd/features/steps/pki_acme.py b/backend/bdd/features/steps/pki_acme.py
index 7562cfd2c..c5627bb8b 100644
--- a/backend/bdd/features/steps/pki_acme.py
+++ b/backend/bdd/features/steps/pki_acme.py
@@ -369,7 +369,6 @@ def step_impl(context: Context, var_path: str, hostname: str):
 @then("I tell ACME server that {var_path} is ready to be verified")
 def step_impl(context: Context, var_path: str):
     challenge = eval_var(context, var_path, as_json=False)
-    acme_challenge = challenge.chall
-    acme_client = challenge.acme_client
-    response, validation = acme_challenge.response_and_validation(acme_client.net.key)
-    acme_client.answer_challenge(acme_challenge, response)
+    acme_client = context.acme_client
+    response, validation = challenge.response_and_validation(acme_client.net.key)
+    acme_client.answer_challenge(challenge, response)